import turtle

penLeft = turtle.Pen()
penLeft.pencolor("red")

penRight = turtle.Pen()
penRight.pencolor("crimson")

angle = 120
size = 150
pos_triangle_left  = (-100, 0)
pos_triangel_right = (+200, 0)

# without loop
penLeft.up()
penLeft.goto(pos_triangle_left)
penLeft.down()
# side 1
penLeft.left(angle)
penLeft.forward(size)
# side 2
penLeft.left(angle)
penLeft.forward(size)
# side 3
penLeft.left(angle)
penLeft.forward(size)

# with loop
penRight.up()
penRight.goto(pos_triangel_right)
penRight.down()

for i in range(3):
    penRight.left(angle)
    penRight.forward(size)   

turtle.done()